But despite police digs in Druid Close, Stoke, Coventry; Breach Oak Lane, Corley; and a field next to Chesterton Windmill, near Leamington, Mr Richards has never been found.

Lucy Richards

He was married with three children.

His mother Lucy Richards said: “I ask anyone with information as to the whereabouts of my son to come forward and give me the opportunity to be re-united with him.

“I have been in a constant state of grief since the day he died and five years after his death the pain is still unbearable.

“My life has been changed forever and it is something I do not wish on anybody. I ask those individuals who know what happened to him to contact police so he can be brought home.”

Detective Chief Inspector Mark Loader, who led the investigation, said: “Firstly I would like to remind the public that a £10,000 reward is available for any information which leads to the successful discovery of Jesse’s body.

“On a separate note this was a brutal attack on an unarmed man and I ask those who do possess information regarding his body to think of those who continue to suffer long after his death.

“I urge them to come forward to police so Jesse and his family can be re-united.”

During the three-month trial of Jesse’s killers and their associates Birmingham Crown Court heard that he was a convicted drug smuggler who owed Houston – a known criminal – £1million.

To try and clear his debts he arranged one last deal, bringing a huge quantity of cannabis into the country.

But before he could sell on the drugs he was called to a travellers site near Evesham where he was attacked and thrown in a van.

Anyone with information that might be able to help locate Mr Richards’ body is asked to call West Mercia Police on 101.

Alternatively if you don’t want to speak directly to a police officer call the independent charity Crimestoppers on 0800 555111.